自定义admin组件，Xamin

看完前一篇，相信你对Django中admin组件有了一定的了解，下面就一起来设计一个自己的admin组件，Xadmin

Xadmin初始化

首先，在一个django项目中新建两个app，一个用于测试Xadmin（testXadmin），一个书写Xadmin组件（Xadmin），然后将两个app都注册到setting文件中：

然后在template文件夹中设置四个网页页面：

add_view.html

change_view.html

delete_view.html

list_view.html

以一个页面为例，做一个简单的示范：add_view.html

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<h3>查看</h3>
</body>
</html>

步骤一书写注册语句

注册语句为：

在Xadmin.apps.py中添加如下代码：

from django.apps import AppConfig
from django.utils.module_loading import autodiscover_modulesclass XadminConfig(AppConfig):name = 'Xadmin'def ready(self):  # 加载类的时候会自动加载autodiscover_modules("Xadmin")

步骤二书写site单例对象，渲染基类对象

在一个利于导入的地方写下生成site的url生成对象，和渲染基类对象，例如我在Xadmin APP下新建一个server文件夹，server中新建Xadmin.py文件

Xadmin.py：

from django.conf.urls import url
from django.shortcuts import HttpResponse, render, redirectclass ModelXadmin(object):def __init__(self, model, site):self.model = modelself.site = sitedef list_view(self, request):print("self.model", self.model)data_list = self.model.objects.all()print("data_list", data_list)return render(request, 'list_view.html', {"data_list": data_list})def add_view(self, request):return render(request, 'add_view.html')def change_view(self, request, id):return render(request, 'change_view.html')def delete_view(self, request, id):return render(request, 'delete_view.html')def get_urls2(self):temp = []temp.append(url(r"^$", self.list_view))temp.append(url(r"^add/$", self.add_view))temp.append(url(r"^(\d+)/change/$", self.change_view))temp.append(url(r"^(\d+)/delete/$", self.delete_view))return temp@propertydef urls2(self):return self.get_urls2(), None, Noneclass XadminSite(object):"""url分配，生成对象"""def __init__(self, name='admin'):self._registry = {}def get_urls(self):print(self._registry)  # {Book:modelAdmin(Book),.......}temp = []for model, admin_class_obj in self._registry.items():app_name = model._meta.app_labelmodel_name = model._meta.model_nametemp.append(url(r'^{0}/{1}/'.format(app_name, model_name), admin_class_obj.urls2), )'''url(r"app01/book",ModelXadmin(Book,site).urls2)url(r"app01/publish",ModelXadmin(Publish,site).urls2)url(r"app02/order",ModelXadmin(Order,site).urls2)'''return temp@propertydef urls(self):return self.get_urls(), None, None  # 返回的是一个元组，元组第一个参数是列表def register(self, model, admin_class=None, **options):if not admin_class:admin_class = ModelXadminself._registry[model] = admin_class(model, self)  # {Book:ModelAdmin(Book),Publish:ModelAdmin(Publish)}site = XadminSite()

　　这里生成的site对象就是url中用的site对象

改写url.py文件

将原来admin对应的路径处理函数换成自己Xadmin组件中的site.urls

在测试app中进行测试：

在testXadmin下的models.py文件中书写表关系对应的类：

from django.db import models# Create your models here.class Author(models.Model):nid = models.AutoField(primary_key=True)name = models.CharField(max_length=32)age = models.IntegerField()# 与AuthorDetail建立一对一的关系authorDetail = models.OneToOneField(to="AuthorDetail", on_delete=models.CASCADE)def __str__(self):return self.nameclass AuthorDetail(models.Model):nid = models.AutoField(primary_key=True)birthday = models.DateField()telephone = models.BigIntegerField()addr = models.CharField(max_length=64)class Publish(models.Model):nid = models.AutoField(primary_key=True)name = models.CharField(max_length=32)city = models.CharField(max_length=32)email = models.EmailField()def __str__(self):return self.nameclass Book(models.Model):nid = models.AutoField(primary_key=True)title = models.CharField(max_length=32)publishDate = models.DateField()price = models.DecimalField(max_digits=5, decimal_places=2)# 与Publish建立一对多的关系,外键字段建立在多的一方publish = models.ForeignKey(to="Publish", to_field="nid", on_delete=models.CASCADE)# 与Author表建立多对多的关系,ManyToManyField可以建在两个模型中的任意一个，自动创建第三张表authors = models.ManyToManyField(to='Author', )def __str__(self):return self.title

　　在testXadmin下新建Xadmin.py文件，文件内容如下：

from Xadmin.service.Xadmin import site, ModelXadmin
from testXadmin.models import *# Register your models here.class BookConfig(ModelXadmin):list_display = ["title", "prcie"]class PublishConfig(ModelXadmin):list_display = ["name"]site.register(Book, BookConfig)
site.register(Publish, PublishConfig)site.register(Author)
site.register(AuthorDetail)

　　这样就完成了使用Xadmin组件提换了原来的admin组件，而且在测试app中还进行了测试，下面看测试结果

验证成功，后面编写前端页面即可替代原admin组件

转载于:https://www.cnblogs.com/wlx97e6/p/10110505.html